Weather in Rio de Janeiro

Calculated from weather data of Cabo Frio Airport (SBCB) between 2019 and 2023.

Maximum temperatures (°C)

Month	Average	2023	2022	2021	2020	2019
January	30.6	28.8	29.1	30.3	29.5	31.1
February	30.2	31.0	28.8	29.1	28.8	30.1
March	30.3	30.3	30.5	30.1	27.8	30.3
April	28.4	27.6	28.0	27.1	27.1	29.3
May	26.8	25.8	26.3	26.1	25.8	27.6
June	26.4	26.0	24.6	24.8	26.6	26.8
July	25.9	25.1	26.6	24.1	25.8	25.0
August	25.3	25.8	24.3	24.8	25.6	24.5
September	26.5	26.8	23.8	25.6	27.3	25.3
October	27.0	26.8	27.1	24.5	27.0	26.8
November	27.2		26.1	25.5	27.0	27.6
December	29.1		27.5	27.3	29.1	29.1
Average	27.8	27.4	26.9	26.6	27.3	27.8

84th highest temperature of Brazil

Average highest temperature per day

The maximum temperature is typically observed some hours after noon.

Minimum temperatures (°C)

Month	Average	2023	2022	2021	2020	2019
January	23.4	23	24	24	24	23
February	23.7	24	24	23	23	24
March	23.6	24	24	23	23	25
April	22.3	22	23	22	22	24
May	20.3	20	20	20	20	22
June	19.6	19	19	20	20	21
July	18.9	19	20	17	19	18
August	19.0	20	19	19	19	19
September	20.3	21	19	21	21	21
October	21.7	22	22	20	22	22
November	21.5		22	21	22	21
December	23.2		23	23	24	23
Average	21.4	21.4	21.3	21.0	21.4	21.9

66th lowest temperature of Brazil

Average lowest temperature per day

The minimum temperature is typically observed just before sunrise.

Cold and hot days

Number of days	2023	2022	2021	2020	2019
30 °C or warmer	51	44	49	50	80
25 °C or warmer	211	238	222	274	286
20 °C or warmer	301	351	359	365	364
0 °C or colder	0	0	0	0	0

Precipitation (%)

Month	Average	2023	2022	2021	2020	2019
January	5.9	13	12	1	8	0
February	4.9	1	8	5	9	7
March	1.9	0	1	1	8	1
April	3.0	6	3	4	2	3
May	5.0	8	2	4	4	7
June	2.7	2	3	4	1	2
July	2.2	4	0	3	2	3
August	5.3	11	3	3	6	5
September	3.5	2	6	1	3	9
October	5.9	6	2	13	7	3
November	8.1		11	9	3	10
December	5.2		7	7	7	5
Average	4.5	5.2	4.9	4.4	4.9	4.4

Precipitation during daylight period

Percentage of observations with observed rain, drizzle, snow or hail. Only observations between sunrise and sunset are taken into account.

Wind speed (km/h)

Month	Average	2023	2022	2021	2020	2019
January	19.6	19	20	23	16	24
February	16.8	18	16	16	18	16
March	17.1	20	21	17	16	16
April	16.1	17	17	19	16	16
May	15.3	16	19	10	16	16
June	14.8	15	16	17	15	16
July	17.1	18	20	17	17	18
August	19.5	17	21	22	19	20
September	21.8	24	20	22	19	21
October	20.0	19	21	18	20	23
November	19.2		19	18	18	21
December	18.3		22	17	15	20
Average	18.0	18.3	19.2	18.0	16.9	18.8

5th highest wind speed of Brazil

Prevailing wind direction

Average wind direction, weighed by wind speed. Only observations between sunrise and sunset are taken into account.

Prevailing wind direction

Month	2023	2022	2021	2020	2019
January	E	E	NE	SE	E
February	E	E	E	E	SE
March	E	E	E	SE	E
April	E	SE	SW	SW	E
May	E	N	E	NE	E
June	E	E	NE	NE	E
July	E	NE	SW	NE	E
August	E	E	NE	NE	E
September	NE	E	E	NE	E
October	E	E	E	E	E
November		E	E	E	SE
December		E	E	E	E

Prevailing wind direction

Average wind direction, weighed by wind speed. Only observations between sunrise and sunset are taken into account.

Rio de Janeiro weather Q&A

What is the warmest month in Rio de Janeiro?

The warmest month is January with an average temperature of 31 °C over the past years.

What is the coldest month in Rio de Janeiro?

The coldest month is August with an average daytime temperature of 25 °C in the past few years.

Which month is the wettest in Rio de Janeiro?

Chance of precipitation is the highest in November with a probability of around 8.2 %.

Which month is the driest in Rio de Janeiro?

The least rainfall and snow can be expected in March. The probability is about 2.0 %.